[INFO] cloning repository https://github.com/ErikNatanael/rust_synthesis_profiling
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ErikNatanael/rust_synthesis_profiling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErikNatanael%2Frust_synthesis_profiling", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErikNatanael%2Frust_synthesis_profiling'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5a5bbecbd7db32eaa7c2461c6dc95d5cc2f7d0e
[INFO] testing ErikNatanael/rust_synthesis_profiling against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErikNatanael%2Frust_synthesis_profiling" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ErikNatanael/rust_synthesis_profiling on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ErikNatanael/rust_synthesis_profiling
[INFO] finished tweaking git repo https://github.com/ErikNatanael/rust_synthesis_profiling
[INFO] tweaked toml for git repo https://github.com/ErikNatanael/rust_synthesis_profiling written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/ErikNatanael/rust_synthesis_profiling already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 49642dc2fdb463447a56a5199373202afe91de6c10838dd0b4dff214da775c5f
[INFO] running `Command { std: "docker" "start" "-a" "49642dc2fdb463447a56a5199373202afe91de6c10838dd0b4dff214da775c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49642dc2fdb463447a56a5199373202afe91de6c10838dd0b4dff214da775c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49642dc2fdb463447a56a5199373202afe91de6c10838dd0b4dff214da775c5f", kill_on_drop: false }`
[INFO] [stdout] 49642dc2fdb463447a56a5199373202afe91de6c10838dd0b4dff214da775c5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 67dbd942c1bf7ed22e83bce00cbfc1ea416d2b834a283e34c060944504fc0de2
[INFO] running `Command { std: "docker" "start" "-a" "67dbd942c1bf7ed22e83bce00cbfc1ea416d2b834a283e34c060944504fc0de2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling dasp_sample v0.11.0
[INFO] [stderr]    Compiling dasp_ring_buffer v0.11.0
[INFO] [stderr]    Compiling libloading v0.6.2
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]    Compiling memalloc v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling dasp_frame v0.11.0
[INFO] [stderr]    Compiling dasp_window v0.11.0
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling nix v0.9.0
[INFO] [stderr]    Compiling jack-sys v0.2.0 (https://github.com/RustAudio/rust-jack.git#41fab12b)
[INFO] [stderr]    Compiling jack v0.6.2 (https://github.com/RustAudio/rust-jack.git#41fab12b)
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling dasp_rms v0.11.0
[INFO] [stderr]    Compiling dasp_peak v0.11.0
[INFO] [stderr]    Compiling dasp_interpolate v0.11.0
[INFO] [stderr]    Compiling dasp_slice v0.11.0
[INFO] [stderr]    Compiling dasp_envelope v0.11.0
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling dasp_signal v0.11.0
[INFO] [stderr]    Compiling libmath v0.2.1
[INFO] [stderr]    Compiling dasp v0.11.0
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling pitch_calc v0.12.0
[INFO] [stderr]    Compiling alsa v0.2.2
[INFO] [stderr]    Compiling midir v0.5.0
[INFO] [stderr]    Compiling oscen v0.1.4
[INFO] [stderr]    Compiling synthesis_profiling v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/dasp_synth.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::f64::consts::PI`
[INFO] [stdout]  --> src/dasp_synth.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::f64::consts::PI;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `oscen::filters::Lpf`
[INFO] [stdout]  --> src/oscen_synth.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use oscen::filters::Lpf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `oscen::operators::Modulator`
[INFO] [stdout]  --> src/oscen_synth.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use oscen::operators::Modulator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SquareOsc`
[INFO] [stdout]  --> src/oscen_synth.rs:3:35
[INFO] [stdout]   |
[INFO] [stdout] 3 | use oscen::oscillators::{SineOsc, SquareOsc};
[INFO] [stdout]   |                                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/owned_wavetable_synth.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `temp`
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut temp = 0.0;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_temp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/shared_wavetable_synth.rs:155:13
[INFO] [stdout]     |
[INFO] [stdout] 155 |         for i in 0..100 {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `old_wavetable`
[INFO] [stdout]    --> src/shared_wavetable_synth.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 |         let old_wavetable = self.wavetables[self.next_free_index].replace(wavetable);
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_old_wavetable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/shared_wavetable_synth.rs:191:13
[INFO] [stdout]     |
[INFO] [stdout] 191 |         for n in 0..num_oscillators {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/dasp_synth.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |         for n in 1..num_oscillators {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/oscen_synth.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |         for i in 0..num_oscillators {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sine`
[INFO] [stdout]   --> src/oscen_synth.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let sine = SineOsc::new().amplitude(amp).hz(200).rack(&mut rack);
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_sine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:136:13
[INFO] [stdout]     |
[INFO] [stdout] 136 |         for n in 1..num_oscillators {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut temp = 0.0;
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_linear_interp`
[INFO] [stdout]   --> src/shared_wavetable_synth.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn get_linear_interp(&self, phase: Sample) -> Sample {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/shared_wavetable_synth.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_freq`
[INFO] [stdout]   --> src/shared_wavetable_synth.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn from_freq(freq: Sample, sample_rate: Sample) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_freq`
[INFO] [stdout]   --> src/shared_wavetable_synth.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn set_freq(&mut self, freq: Sample, sample_rate: Sample) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/shared_wavetable_synth.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn new(wavetable: WavetableIndex) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `freed_indexes`
[INFO] [stdout]    --> src/shared_wavetable_synth.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     freed_indexes: Vec<WavetableIndex>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Sample`
[INFO] [stdout]  --> src/dasp_synth.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type Sample = f64;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SynthesisEngine`
[INFO] [stdout]  --> src/dasp_synth.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct SynthesisEngine {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/dasp_synth.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new(sample_rate: f64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> src/dasp_synth.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn next(&mut self) -> Sample {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `Sample`
[INFO] [stdout]  --> src/oscen_synth.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub type Sample = f64;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SynthesisEngine`
[INFO] [stdout]  --> src/oscen_synth.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct SynthesisEngine {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/oscen_synth.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new(sample_rate: f64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> src/oscen_synth.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn next(&mut self) -> f64 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn new(wavetable_size: usize) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sine`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn sine(wavetable_size: usize) -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_power_of_2`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn is_power_of_2(num: usize) -> bool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_freq`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 |     fn from_freq(freq: f64, sample_rate: f64) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_freq`
[INFO] [stdout]   --> src/owned_wavetable_synth.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn set_freq(&mut self, freq: f64, sample_rate: f64) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn new(wavetable: Wavetable) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_freq`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 |     pub fn from_freq(freq: f64, sample_rate: f64, wavetable: Wavetable) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SynthesisEngine`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:126:12
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub struct SynthesisEngine {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn new(sample_rate: f64) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]    --> src/owned_wavetable_synth.rs:149:12
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn next(&mut self) -> Sample {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e.synthesis_profiling.50xhn9w5-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e.synthesis_profiling.50xhn9w5-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e.synthesis_profiling.50xhn9w5-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e.synthesis_profiling.50xhn9w5-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e.synthesis_profiling.50xhn9w5-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e.synthesis_profiling.50xhn9w5-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e.synthesis_profiling.50xhn9w5-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e.synthesis_profiling.50xhn9w5-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e.synthesis_profiling.50xhn9w5-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e.synthesis_profiling.50xhn9w5-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e.synthesis_profiling.50xhn9w5-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e.synthesis_profiling.50xhn9w5-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e.synthesis_profiling.50xhn9w5-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e.synthesis_profiling.50xhn9w5-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e.synthesis_profiling.50xhn9w5-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e.synthesis_profiling.50xhn9w5-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e" "/opt/rustwide/target/debug/deps/synthesis_profiling-92a88c728375676e.4tu7yxte7hz020ci.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/usr/lib/x86_64-linux-gnu" "-L" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libjack-6bb57dba3328a594.rlib" "/opt/rustwide/target/debug/deps/libbitflags-e8b42ad6d332332e.rlib" "/opt/rustwide/target/debug/deps/libjack_sys-7c8cf4a85f118da6.rlib" "/opt/rustwide/target/debug/deps/liblibloading-243cf200025e6c77.rlib" "/opt/rustwide/target/debug/deps/liboscen-89f6f23bf53ebb9e.rlib" "/opt/rustwide/target/debug/deps/libapprox-7939cb0352008814.rlib" "/opt/rustwide/target/debug/deps/libpitch_calc-8b43af1c108b3ebc.rlib" "/opt/rustwide/target/debug/deps/libnum-6c7691d9761baa19.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-cffa16b61f3b3dba.rlib" "/opt/rustwide/target/debug/deps/libnum_bigint-c6a59363eadc10a5.rlib" "/opt/rustwide/target/debug/deps/libnum_complex-cd948b0cba1a3dc6.rlib" "/opt/rustwide/target/debug/deps/librustc_serialize-b94f9e5a325066ba.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-0315511891a9d141.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-a6465f83454b3464.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-a9e21954cf7d4977.rlib" "/opt/rustwide/target/debug/deps/libmidir-221b15f9df920f79.rlib" "/opt/rustwide/target/debug/deps/libalsa-f970bfb9eafe2f75.rlib" "/opt/rustwide/target/debug/deps/libnix-a063625c1b4387cb.rlib" "/opt/rustwide/target/debug/deps/libvoid-3484f9f7e819ca54.rlib" "/opt/rustwide/target/debug/deps/libbitflags-784789cfb973a420.rlib" "/opt/rustwide/target/debug/deps/libalsa_sys-5c081a180d9a24d7.rlib" "/opt/rustwide/target/debug/deps/libmemalloc-ae28ddec99d34ca9.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam-6d05b1b97b80b988.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_queue-198c64faafe0237c.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_channel-40e0e2b692142223.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-ed1437c44fd2a69c.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-f7ce95b36c1ddc42.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-433667b6ea9b0655.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-9b5264733f282745.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-5ef602b149509a13.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-bf21cfb31a9e28ca.rlib" "/opt/rustwide/target/debug/deps/libmaybe_uninit-f89ccdbeee7edf7d.rlib" "/opt/rustwide/target/debug/deps/librand_distr-de9d41969d4d358d.rlib" "/opt/rustwide/target/debug/deps/libmath-7ca52f12846610ef.rlib" "/opt/rustwide/target/debug/deps/librand-de45d5c112e1bbeb.rlib" "/opt/rustwide/target/debug/deps/librand-2bedeef7431de56b.rlib" "/opt/rustwide/target/debug/deps/libuuid-ae81f6247bbb44e9.rlib" "/opt/rustwide/target/debug/deps/librand-84e33a09bd6031cd.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-ab3baa617af1fa91.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-fc243a9723dfd8f3.rlib" "/opt/rustwide/target/debug/deps/librand_core-ee0b17fd6eefcbac.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-523453eda16bd2ca.rlib" "/opt/rustwide/target/debug/deps/liblibc-236ae22d1e9be7d5.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-d2033c938d1688fd.rlib" "/opt/rustwide/target/debug/deps/libdasp-e3e89606d27c6ab7.rlib" "/opt/rustwide/target/debug/deps/libdasp_slice-659e682526b26f09.rlib" "/opt/rustwide/target/debug/deps/libdasp_signal-1e8222f1e54e3f14.rlib" "/opt/rustwide/target/debug/deps/libdasp_window-c53d6a3edfc7c4a8.rlib" "/opt/rustwide/target/debug/deps/libdasp_interpolate-2f33ace4a259a60e.rlib" "/opt/rustwide/target/debug/deps/libdasp_envelope-bb7412c797f455e2.rlib" "/opt/rustwide/target/debug/deps/libdasp_rms-3bde007807b106d6.rlib" "/opt/rustwide/target/debug/deps/libdasp_ring_buffer-03bbf51c958bb938.rlib" "/opt/rustwide/target/debug/deps/libdasp_peak-3d52450c96b8b7ef.rlib" "/opt/rustwide/target/debug/deps/libdasp_frame-2415a8ee7fa88d05.rlib" "/opt/rustwide/target/debug/deps/libdasp_sample-3bfef21c1d50c34d.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-f14aca24435a5414.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-48d342a8b48d1d01.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-14bc0820888c8eb3.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-9cbd9e217bff06bc.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-31826136df98934e.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-075976a117c8fd5d.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-2d5cbedfbf17a011.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-0474372ff08c5319.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d437c34460d2315a.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-fb61ed1b8cc4de79.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-bf76d1b643bfc9f0.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-a1b53aa7fddcf418.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-28585e57fac45c73.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-64801769bc15ab28.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-541997b56bb98660.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-cdea3c81adab3d12.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-cd9f15a39fb65cbc.rlib" "-Wl,-Bdynamic" "-ljack" "-ldl" "-lasound" "-lutil" "-ldl" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -ljack
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 40 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `synthesis_profiling`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "67dbd942c1bf7ed22e83bce00cbfc1ea416d2b834a283e34c060944504fc0de2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67dbd942c1bf7ed22e83bce00cbfc1ea416d2b834a283e34c060944504fc0de2", kill_on_drop: false }`
[INFO] [stdout] 67dbd942c1bf7ed22e83bce00cbfc1ea416d2b834a283e34c060944504fc0de2
